<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>添加房间</h1>
<form action="" method="post">
     楼号: <input type="text" name="add_tower_name" placeholder="如：‘教学楼9’"><br>
    楼层: <input type="text" name="add_floor_num" placeholder="输入楼层号"><br>
    房间: <input type="text" name="add_room_num" placeholder="输入房间号"><input type="submit" value="提交"><br>
</form>
</body>
</html>